China Yunnan Auto
A indica testing at 15% THC, China Yunnan Auto is reported euphoric, calm. Grown right across the country, from the Cape to the Lowveld. Discreet nationwide delivery and a germination guarantee.
Royal King Genetics — Seed-Lot Testing
Figures below come from our own seed-lot testing rather than breeder marketing, taken from a single batch tested 2026-09-13 on 175 seeds.
About China Yunnan Auto
The way to plan China Yunnan is backwards from the day you intend to cut, with 250 grams per square metre indoors and 250 grams per plant per plant outdoors as the figures you are working toward, at 15% THC. Count Approximately 8–9 Weeks back from that date and you have your flip date. Most of the final weight lands between weeks 5 and 8, when calyxes stack fastest and trichome cover goes from patchy to complete. Outdoors in the Southern Hemisphere you want that fattening phase falling in February while the days are still long, which puts a late-March cut about right for most of the country.
The Aromatic Three
Leading with Myrcene, then Caryophyllene, and Linalool underneath.
Difficulty: moderate. In flower for Approximately 8–9 Weeks. Stands 90-120 cm. Medium. Indoors it returns 250 grams. Outdoors, 250 grams per plant a plant.
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China Yunnan Auto — Breeder Information
Royal King GeneticsRecreated and stabilised by Royal King Genetics, the breeding team behind this catalogue. Seed lots are germination-tested before they ship. More on the breeding process and about page.
China Yunnan is our F5 autoflower line. Five rounds of selection have fixed both the autoflower trigger and the dense flower architecture the cultivar is known for. The recessive ruderalis trait demands this depth of work to express uniformly.
Stabilise the recessive ruderalis trait in China Yunnan for uniform auto-trigger.
Chosen for resin output, a low-slung stature and a clean indica terpene fingerprint.
Royal King Genetics select-mother programme — pollen drawn from an internally maintained reversed-female line.